Experiments and simulations show that the proposed system can operate in audio switch frequency range without audionoise from the motor load, meanwhile, EMI can be limited to low level.
实验与仿真结果表明：该系统采用音频开关而不导致电机负载的音频噪声，同时使EMI能被限制在低电平。
2
Analog synthesis often use low-pass filter to remove electronic audio generator generated by high-frequencynoise.
模拟合成器常常使用低通滤波器来去除电子音频发生器所产生的高频噪声。
3
How to eliminate noise and the audio enhancement technologies are also proposed, especially the analyzing of the character of audio and frequency subtraction for eliminating noise.